蛙嗅觉上皮顶端区域肽能神经支配的超微结构证据。

Ultrastructural evidence for peptidergic innervation of the apical region of frog olfactory epithelium.

作者信息

Zielinski B S, Getchell M L, Getchell T V

机构信息

Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI 48201.

出版信息

Brain Res. 1989 Jul 17;492(1-2):361-5. doi: 10.1016/0006-8993(89)90920-7.

DOI:10.1016/0006-8993(89)90920-7

PMID:2787690

Abstract

Ultrastructural examination of the region near the olfactory epithelial surface of leopard frogs revealed the presence of nerve terminals just proximal to the zonula adherens between adjacent sustentacular cells, and between sustentacular cells and olfactory receptor neurons. Terminal varicosities, located about 20 nm from sustentacular cell membranes, contained numerous large-diameter dense-cored vesicles, small-diameter agranular vesicles, and mitochondria. On the basis of ultrastructural characteristics, they are identified as peptidergic sensory terminals.

摘要

对豹蛙嗅觉上皮表面附近区域的超微结构检查发现，在相邻支持细胞之间以及支持细胞与嗅觉受体神经元之间的黏着小带近端存在神经末梢。终末膨体位于距支持细胞膜约20纳米处，含有许多大直径的有芯致密小泡、小直径的无颗粒小泡和线粒体。根据超微结构特征，它们被鉴定为肽能感觉末梢。